城市轨道交通换乘站点失效下网络脆弱性分析

城市轨道交通换乘站点失效会导致网络性能下降,使得系统表现出较高的脆弱性,换乘站点失效下网络脆弱性分析对于保障系统运营安全具有重要意义.考虑城市轨道交通网络和外部公共交通网络的耦合关系,分析换乘站点失效后的乘客广义出行费用,对乘客出行选择行为进行建模;从运营服务网络性能下降的视角,提出了网络脆弱性定量评估指标;对路网拓扑...

Network vulnerability analysis under urban rail transit transfer station failure

Urban rail transit transfer station failure can lead to network degradation and make the urban rail transit system performance vulnerable. Network vulnerability analysis under transfer station failure is of significance to guarantee operational safety. Considering the coupling relation between urban rail transit networks and external public transport networks, generalized passenger travel cost under transfer station failure is analyzed and passenger travel choice behavior is modelled. From the perspective of the operation service network degradation, the measurement indicator of network vulnerability is developed to quantify the influence of the failure. The urban rail transit topology structure network is modelled, and a vulnerability analysis framework of urban rail transit network is established. A case study on Shenzhen urban rail transit network is conducted; the results show that the vulnerability performance and passenger flow differ for different transfer station failures. Network vulnerability analysis can help managers identify the key transfer stations and devise pertinent emergency strategies.